OBD Guide

P1775

Solenoid Switch Valve Latched In TCC Position

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–67 (est.)

Symptoms

  • Hard gear shifts
  • Increased engine speed when stopping
  • Increased fuel consumption
  • Vibration when driving at low speeds
  • Check Engine light comes on

Causes

  • Mechanical stuck solenoid valve
  • Contaminated or old transmission fluid
  • TCC solenoid malfunction
  • Problems with wiring or connectors
  • Transmission control module (TCM) malfunction

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Diagnose TCC solenoid operation
  3. Check the integrity of wiring and connectors
  4. If necessary, replace the solenoid valve
  5. Reset transmission adaptations

Related codes

Error P1775 by Vehicle Brand